TY - JOUR
T1 - The role of the [CpM(CO)2]- chromophore in the optical properties of the [Cp2ThMCp(CO)2]+ complexes, where M = Fe, Ru and Os. A theoretical view
AU - Cantero-López, Plinio
AU - Le Bras, Laura
AU - Páez-Hernández, Dayán
AU - Arratia-Pérez, Ramiro
N1 - Publisher Copyright:
© The Royal Society of Chemistry 2015.
PY - 2015
Y1 - 2015
N2 - The chemical bond between actinide and the transition metal unsupported by bridging ligands is not well characterized. In this paper we study the electronic properties, bonding nature and optical spectra in a family of [Cp2ThMCp(CO)2]+ complexes where M = Fe, Ru, Os, based on the relativistic two component density functional theory calculations. The Morokuma-Ziegler energy decomposition analysis shows an important ionic contribution in the Th-M interaction with around 25% of covalent character. Clearly, charge transfer occurs on Th-M bond formation, however the orbital term most likely represents a strong charge rearrangement in the fragments due to the interaction. Finally the spin-orbit-ZORA calculation shows the possible NIR emission induced by the [FeCp(CO)2]- chromophore accomplishing the antenna effect that justifies the sensitization of the actinide complexes.
AB - The chemical bond between actinide and the transition metal unsupported by bridging ligands is not well characterized. In this paper we study the electronic properties, bonding nature and optical spectra in a family of [Cp2ThMCp(CO)2]+ complexes where M = Fe, Ru, Os, based on the relativistic two component density functional theory calculations. The Morokuma-Ziegler energy decomposition analysis shows an important ionic contribution in the Th-M interaction with around 25% of covalent character. Clearly, charge transfer occurs on Th-M bond formation, however the orbital term most likely represents a strong charge rearrangement in the fragments due to the interaction. Finally the spin-orbit-ZORA calculation shows the possible NIR emission induced by the [FeCp(CO)2]- chromophore accomplishing the antenna effect that justifies the sensitization of the actinide complexes.
UR - http://www.scopus.com/inward/record.url?scp=84947996460&partnerID=8YFLogxK
U2 - 10.1039/c5dt03121d
DO - 10.1039/c5dt03121d
M3 - Article
C2 - 26523807
AN - SCOPUS:84947996460
SN - 1477-9226
VL - 44
SP - 20004
EP - 20010
JO - Dalton Transactions
JF - Dalton Transactions
IS - 46
ER -